nix-bitcoin/modules/presets/secure-node.nix

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{ config, lib, pkgs, ... }:
with lib;
let
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cfg = config.services;
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nbLib = config.nix-bitcoin.lib;
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operatorName = config.nix-bitcoin.operator.name;
in {
imports = [
../modules.nix
./enable-tor.nix
];
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config = {
# For backwards compatibility only
nix-bitcoin.secretsDir = mkDefault "/secrets";
networking.firewall.enable = true;
nix-bitcoin.security.hideProcessInformation = true;
# Use doas instead of sudo
security.doas.enable = true;
security.sudo.enable = false;
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environment.systemPackages = with pkgs; [
jq
];
# sshd
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services.tor.hiddenServices.sshd = nbLib.mkHiddenService { port = 22; };
nix-bitcoin.onionAddresses.access.${operatorName} = [ "sshd" ];
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services.bitcoind = {
enable = true;
listen = true;
dataDirReadableByGroup = mkIf cfg.electrs.high-memory true;
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addnodes = [ "ecoc5q34tmbq54wl.onion" ];
discover = false;
addresstype = "bech32";
dbCache = 1000;
};
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services.liquidd = {
prune = 1000;
validatepegin = true;
listen = true;
};
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nix-bitcoin.nodeinfo.enable = true;
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services.backups.frequency = "daily";
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# operator
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nix-bitcoin.operator.enable = true;
users.users.${operatorName} = {
openssh.authorizedKeys.keys = config.users.users.root.openssh.authorizedKeys.keys;
};
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};
}